Earlier this month, Valve suddenly decided to remove all games with NFTs from Steam. Dozens of developers have now filed a petition, asking the company to not ban blockchain-based titles.

Changes were made to the Steamworks Documentation regarding the onboarding process for games. According to the rules, devs can’t distribute “applications built on blockchain technology that issue or allow exchange of cryptocurrencies or NFTs.”

Epic Games CEO Tim Sweeney has explained why the company won’t use NFTs in its titles. He cited the scam problem as the main reason behind it and questioned the non-fungibility of NFTs, sparking debate online.

The International Game Developers Association (IGDA) has released a call to action on the usage of blockchain by game developers. The organization wants companies to find more energy-efficient algorithms.

NFTs and blockchain-based games is a new trend in the games industry. Mythical Games, known for creating so-called “playable NFTs,” is another proof, as the studio has raised $75 million from investors in a new round.

Animoca Brands has become the industry’s newest unicorn after raising $88 million at a $1 billion valuation. Hong Kong company is known for publishing blockchain games and launching its own NFTs.